Problem 6
Question
The loudness or intensity of a sound wave is related to its a. amplitude. b. frequency. c. duration. d. pitch.
Step-by-Step Solution
Verified Answer
Amplitude
1Step 1: Understand the Question
The question is asking for the factor that affects the loudness or intensity of a sound wave. This involves understanding the basic properties of sound waves.
2Step 2: Define the Properties
Sound waves have several key properties: amplitude, frequency, duration, and pitch. Each of these properties affects the sound in different ways.
3Step 3: Identify the Role of Each Property
1. Amplitude: Amplitude corresponds to the height of the sound wave and affects the loudness or intensity. 2. Frequency: Frequency determines how many waves pass a point in a given time and affects the pitch. 3. Duration: Duration is the length of time the sound is heard. 4. Pitch: Pitch is the perception of the frequency of the sound wave.
4Step 4: Determine the Correct Answer
From the previous step, it is clear that amplitude is the property that affects the loudness or intensity of a sound wave.
Key Concepts
AmplitudeFrequencyPitchDuration
Amplitude
Amplitude relates to the height or strength of a sound wave. It measures the distance from the resting position to the peak of the wave.
Higher amplitude waves show stronger vibrations, leading to louder sounds.
Conversely, lower amplitude waves display weaker vibrations, resulting in softer sounds.
Therefore, amplitude directly impacts the loudness or intensity of a sound.
To visualize this, think of a large ocean wave versus a small ripple. The large wave has a high amplitude and produces a significant impact, while the small ripple has a low amplitude and is barely noticeable.
Higher amplitude waves show stronger vibrations, leading to louder sounds.
Conversely, lower amplitude waves display weaker vibrations, resulting in softer sounds.
Therefore, amplitude directly impacts the loudness or intensity of a sound.
To visualize this, think of a large ocean wave versus a small ripple. The large wave has a high amplitude and produces a significant impact, while the small ripple has a low amplitude and is barely noticeable.
Frequency
Frequency measures how often a wave passes a certain point in a given amount of time. It is typically measured in Hertz (Hz).
Higher frequency means more waves pass a point per second, leading to higher-pitched sounds.
Lower frequency means fewer waves pass a point per second, resulting in lower-pitched sounds.
For example, the tone of a flute (high frequency) differs greatly from the tone of a bass drum (low frequency). Frequency helps us distinguish between different musical notes and sounds in our environment.
Higher frequency means more waves pass a point per second, leading to higher-pitched sounds.
Lower frequency means fewer waves pass a point per second, resulting in lower-pitched sounds.
For example, the tone of a flute (high frequency) differs greatly from the tone of a bass drum (low frequency). Frequency helps us distinguish between different musical notes and sounds in our environment.
Pitch
Pitch is how we perceive the frequency of a sound wave. A sound with a high frequency is described as high-pitched, like a whistle.
A sound with a low frequency is described as low-pitched, like a drum.
Pitch allows us to identify the notes in music and the tone of voices.
Even though pitch is a subjective experience, it is directly influenced by the objective measure of frequency.
Therefore, while they are closely related, they are not the same thing: frequency is a measurable property, while pitch is the perception of that property.
A sound with a low frequency is described as low-pitched, like a drum.
Pitch allows us to identify the notes in music and the tone of voices.
Even though pitch is a subjective experience, it is directly influenced by the objective measure of frequency.
Therefore, while they are closely related, they are not the same thing: frequency is a measurable property, while pitch is the perception of that property.
Duration
Duration is how long a sound lasts. It measures the elapsed time between the start and end of a sound.
Short duration sounds are brief and quick, like a clap.
Long duration sounds are extended and sustained, like a ringing bell.
In music, duration determines the rhythm and timing of notes, contributing to the overall structure of a piece.
This property does not affect the loudness or pitch but is essential for recognizing patterns and rhythms in sound.
Understanding duration helps in differentiating between short and extended sounds in various contexts.
Short duration sounds are brief and quick, like a clap.
Long duration sounds are extended and sustained, like a ringing bell.
In music, duration determines the rhythm and timing of notes, contributing to the overall structure of a piece.
This property does not affect the loudness or pitch but is essential for recognizing patterns and rhythms in sound.
Understanding duration helps in differentiating between short and extended sounds in various contexts.
Other exercises in this chapter
Problem 4
Noah is a 4-year-old boy who has a middle ear infection. The cause of the infection could be a. bacteria that spread to the ear from a sore throat. b. excessive
View solution Problem 5
The blind spot of the eye is a. located in the cornea. b. the region where the optic nerve leaves the eye. c. the region of the eye where rods outnumber cones.
View solution Problem 7
Sound waves are converted into mechanical movements by the a. bones of the middle ear. b. cochlea. c. oval window. d. round window.
View solution Problem 8
Information about the position of arms, legs, and peripheral joints of the body in space comes from a. rods. b. cones. c. proprioceptors. d. semicircular canals
View solution